Red Hat Bugzilla – Bug 132085
Error While Starting Listener
Last modified: 2007-11-30 17:10:48 EST
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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2)
Description of problem:
When I launch gnomemeeting, I get the following error message: Error
while starting the listener.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Click on gnomemeeting
Actual Results: The error message below is displayed.
Error while starting the listener
You will not be able to receive incoming calls. Please check that
no other program is already running on the port used by Gnomemeeting.
Expected Results: Gnomemeeting should launch without any errors
nmap -sT -O localhost returned the following information with or
without gnomemeeting active.
Starting nmap 3.55 ( http://www.insecure.org/nmap/ ) at 2004-09-08
sendto in send_ip_raw: sendto(4, packet, 28, 0, 127.0.0.1, 16) =>
Operation not permitted
Interesting ports on XXXXX.XXXXXXXX.XXX (127.0.0.1):
(The 1651 ports scanned but not shown below are in state: closed)
PORT STATE SERVICE
22/tcp open ssh
25/tcp open smtp
53/tcp open domain
111/tcp open rpcbind
139/tcp open netbios-ssn
445/tcp open microsoft-ds
631/tcp open ipp
953/tcp open rndc
1720/tcp open H.323/Q.931
Open a terminal and examine the output of (run as root):
netstat -l -v -p -n
This should show which process is listening on port 1720 (which is
what gnomemeeting wants). If it is another instance of gnomemeeting,
see if you can find where it is and either use that instance or kill
it. If it is something else, you may need to shut it down. If it is
something else and you think gnomemeeting and the other process
shouldn't conflict with each other, feel free to reopen this and
include the output of the netstat command (above).
The output from the command showed that port 1720 was not used by
anything. I'm not sure what caused this, but I rebooted the box and it
cleared the port. Was it a bug??? If it was, it would probably be hard
to track down the root cause.
tcp 0 0 :::1720 :::*